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i am forced to rebuild my 350 in my 86, so since i have to tear it dwn it seems to be a good time to up grade. i want to run an alum head to reduce some weight, an engine builder of mine told me that vortech heads will bolt up to my 77 350 and flow great. i have searched for a alun vortech head and haven't come up with anything what did these things come off of?
 

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Aluminum vortec heads dont come on any vehicle thats equiped with the heads thatll fit your engine (96 - 99 350 vortec engines). The aluminum ones are gm performance parts availiable, id go through jegs or whoever you use if you want them new. You might also try ebay to see what you can get. But if you can find a set of iron vortecs they are quite a bit cheaper if you find them used and in good condition, and if you go that way, they can be ported and all to flow even better.

Also you need to remember that when using the vortec heads you have to have a vortec intake as well.
 
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